Hook structure for molded surface fastener

Details Hook structure for molded surface fastener Hook structure for molded surface fastener

A - Human Necessities

44

B

A44B 11/00 (2006.01) A44B 18/00 (2006.01)

Patent

CA 2160526

In a molded surface fastener, a hook has vertical multi-step reinforcing ribs on opposite side surfaces of a stem, and it is therefore possible to make the hook-shape engaging portion adequately soft and to increase the rate of engagement with loops. Further, since each reinforcing rib extends to the curve of the hook-shape engaging portion, it is possible to secure a predetermined degree of engaging force, despite the thin and soft hook-shape engaging portion, unlike the simple reinforcing ribs of the conventional art.

La présente invention a pour objet une fermeture de surface produite par moulage et dans laquelle les crochets sont pourvus de nervures de renforcement progressif situées de part et d'autre des pédoncules, rendant ainsi possible la fabrication d'une bande de bouclettes plus souple et offrant un accrochage supérieur. En outre, chaque nervure de renforcement se prolongeant au-delà de l'oeil du crochet, il est possible d'accroître la force d'accrochage malgré la finesse des crochets et la souplesse des bouclettes, contrairement à ce qui est le cas dans l'état actuel des choses.

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